Answer: It is weakly repelled.
- A It is strongly attracted
- B It is weakly attracted
- C It is weakly repelled
- D It becomes permanently magnetised
Correct answer: C. It is weakly repelled
Explanation: Diamagnetic materials (e.g., bismuth, copper, water) are weakly repelled by an external magnetic field, having a small negative magnetic susceptibility.
Magnetic field of a bar magnet: field lines emerge from the north pole and re-enter at the south pole outside the magnet, forming continuous closed loops. Image: Geek3, CC BY-SA 3.0, via Wikimedia Commons.
Concept context
Bar magnets, Earth's magnetism, and how different materials respond to an external magnetic field - diamagnetic, paramagnetic, and ferromagnetic behaviour.